L6-20 Extension Cords | McMaster-Carr

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28 Products

About Industry Designation for Cable Insulation

About NEMA Plugs, Sockets, and Receptacles

About Extension Cords

Plug × Socket

Plug × Socket × Socket

NEMA L6-20 Plug

NEMA L6-30 Socket

NEMA L6-20 Socket

NEMA L6-30 Plug

Change the connection style between an outlet and your equipment.

STW and SJTW adapters have a water-resistant outer insulation. STOW and SJTOW adapters have an oil- and water-resistant outer insulation.

For technical drawings and 3-D models, click on a part number.

					Cord
Lg.	Wire Gauge	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Color		Each
NEMA L6-20 Plug × NEMA L6-30 Socket
10 1/2"	10	20	250V AC	Without Power-Indicating Light	0.62"	PVC Plastic	SJTOW	Black	0000000	000000
NEMA L6-30 Plug × NEMA L6-20 Socket
3 ft.	10	30	250V AC	Without Power-Indicating Light	0.67"	PVC Plastic	STW	Yellow	0000000	00000

Abrasion-Resistant Turn-Lock Extension Cords

NEMA L6-20 Plug

NEMA L6-20 Socket

Thick insulation protects the internal wires of these cords, so they can be used in high-traffic areas and over rough areas. The insulation also resists water. Give the connectors a quarter turn to lock in place; they remain secure in high-vibration applications.

SOW cords have oil-resistant insulation.

					Cord
Lg., ft.	Wire Gauge	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Color		Each
NEMA L6-20 Plug × NEMA L6-20 Socket
50	12	20	250V AC	Without Power-Indicating Light	0.67"	Rubber	SOW	Black	0000000	0000000

Turn-Lock Extension Cords for Harsh Environments

NEMA L6-20 Plug

NEMA L6-20 Socket

These cords have an oil- and water-resistant insulation and impact-resistant connectors for protection in harsh environments. Give the connectors a quarter turn to lock in place; they remaining secure in high-vibration applications.

					Cord
Lg., ft.	Wire Ga.	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L6-20 Plug × NEMA L6-20 Socket
25	14	18	250V AC	Without Power-Indicating Light	0.5"	Rubber	SOOW	UL Listed	Yellow	0000000	0000000

Extension Cord Splitters

Power multiple devices from the same outlet with these splitters.

Two-outlet and three-outlet splitters plug into an outlet or extension cord.Use SJT and SPT-2 splitters in dry or damp locations.

For technical drawings and 3-D models, click on a part number.

Two-Outlet Splitters

Plug × Two Outlets

NEMA L6-20 Plug

NEMA L6-20 Socket

					Cord
Lg., ft.	Wire Ga.	Current, A	Voltage	Power-Indicating Light	OD	Insulation Material	Industry Designation	Specifications Met	Color		Each
NEMA L6-20 Plug × NEMA L6-20 Socket
3	10	20	250V AC	Without Power-Indicating Light	0.57"	PVC Plastic	SJT	UL Listed, C-UL Listed	Black	00000000	0000000

Turn-Lock Power Cords

NEMA L6-20 Plug

The plug on these cords turns to lock in an outlet, so they remain securely attached in high-vibration applications.

					Cord
NEMA Style	Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA Plug × Wire Leads
L6-20	12	20	250V AC	8	0.44"	PVC Plastic	SJT	0° to 140°	UL Listed, C-UL Listed	Black	000000000	000000

Electronic Equipment Turn-Lock Power Cords

IEC C19 Socket

IEC C13 Socket

NEMA L6-20 Plug

Use these cords with computers, lab equipment, and office machines that have IEC connections. They have a plug that turns to lock in an outlet, so they remain securely attached in high-vibration applications.

				Cord
Wire Gauge	Current, A	Voltage	Lg., ft.	OD	Insulation Material	Industry Designation	Temp. Range, °F	Specifications Met	Color		Each
NEMA L6-20 Plug × IEC C13 Socket
14	15	250V AC	6	0.36"	PVC Plastic	SJT	0° to 140°	UL Listed, C-UL Listed, IEC 60320	Black	0000000	000000
NEMA L6-20 Plug × IEC C19 Socket
12	20	250V AC	8	0.16"	PVC Plastic	SJT	-40° to 140°	UL Listed, C-UL Listed, IEC 60320	Black	000000	00000

Turn-Lock Plugs, Sockets, and Receptacles

A quarter turn locks these connectors in place to remain secure in high-vibration applications and prevent accidental disconnection.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L6-20	250V AC	20A	2.2"	Screw Terminals	0.23"-1.15"	UL Listed, CSA Certified	Black	000000	000000

Three-Blade 90° Elbow Plugs

NEMA L6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L6-20	250V AC	20A	2.6"	Screw Terminals	0.23"-1.15"	UL Listed	Black	000000	000000

Three-Slot Sockets

NEMA L6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L6-20	250V AC	20A	2.2"	Screw Terminals	0.23"-1.15"	UL Listed, CSA Certified	Black	0000000	000000

Premium Turn-Lock Plugs, Sockets, and Receptacles

Also known as twist-lock devices, these connectors are built to handle tough, repetitive-use applications, and are more durable than standard turn-lock connectors. A quarter turn locks them in place to remain secure in high-vibration applications and prevent accidental disconnection.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color	Environmental Rating	Specifications Met		Each
L6-20	250V AC	20A	2.3"	Screw Terminals	0.36"-0.93"	Black	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 94 HB, UL 498	0000000	000000

Three-Slot Sockets

NEMA L6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color	Environmental Rating	Specifications Met		Each
L6-20	250V AC	20A	2.3"	Screw Terminals	0.36"-0.93"	Black	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 94 HB, UL 498	0000000	000000

Ground-Monitoring Turn-Lock Plugs and Sockets

Check the status of a ground connection—a green light signals that connectors have power and are safely grounded. A red light indicates power only. The lights are visible from any angle for quick identification. A quarter turn locks connectors in place to remain secure in high-vibration applications and prevent accidental disconnection.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L6-20	250V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000

Three-Slot Sockets

NEMA L6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Specifications Met	Color		Each
L6-20	250V AC	20A	2.2"	Screw Terminals	0.39"-1.15"	UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498	Black	0000000	000000

Washdown Turn-Lock Connectors and Cords

When mated, connectors meet NEMA 6P for protection against corrosion and washdowns. All have a multiple-ring seal and rubber housing to keep out liquid. They resist heat, oil, and chemicals. A quarter turn locks them in place to remain secure in high-vibration applications and prevent accidental disconnection.

Plugs mate with female receptacles and female sockets with an attached cover.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L6-20 Male

Plugs									Caps for Plugs
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each		Each
Grounded
L6-20	250V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Yellow	00000000	000000	000000000	000000
L6-20	250V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Black	000000000	00000	000000000	00000

Three-Slot Sockets

NEMA L6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
L6-20	250V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Yellow	000000000	000000

Three-Slot Sockets with Attached Cover

NEMA L6-20 Female

Sockets									Replacement Caps for Sockets
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each		Each
Grounded
L6-20	250V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Yellow	00000000	000000	000000000	000000
L6-20	250V AC	20A	2.5"	Screw Terminals	0.38"-0.69"	Black	000000000	00000	000000000	00000

Impact-Resistant Turn-Lock Connectors

A rubber housing protects these connectors from damage caused by drops and impact. Lock them in place with a quarter turn to remain secure in high-vibration applications and prevent accidental disconnection. Not intended for use in wet or damp environments.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
L6-20	250V AC	20A	1.9"	Screw Terminals	0.33"-0.84"	Yellow	0000000	000000

Three-Slot Sockets

NEMA L6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Color		Each
L6-20	250V AC	20A	1.9"	Screw Terminals	0.33"-0.84"	Yellow	0000000	000000

Corrosion-Resistant Turn-Lock Connectors

Stainless steel hardware and nickel-plated blades or slots protect connectors from damage in corrosive environments. A quarter turn locks them in place to remain secure in high-vibration applications and prevent accidental disconnection.

For technical drawings and 3-D models, click on a part number.

Three-Blade Plugs

NEMA L6-20 Male

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
L6-20	250V AC	20A	2"	Screw Terminals	0.36"-0.93"	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 498, UL 94 HB	Yellow	0000000	000000

Three-Slot Sockets

NEMA L6-20 Female

Grounded
NEMA Style	Voltage	Current	OD	Wire Connection Type	For Cable OD	Environmental Rating	Specifications Met	Color		Each
L6-20	250V AC	20A	2.3"	Screw Terminals	0.36"-0.93"	IP20	UL Listed, CSA Certified, Fed. Spec. W-C-596, UL 498, UL 94 HB	Yellow	0000000	000000

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About Industry Designation for Cable Insulation

About NEMA Plugs, Sockets, and Receptacles

About Extension Cords

Extension Cord Adapters

Abrasion-Resistant Turn-Lock Extension Cords

Turn-Lock Extension Cords for Harsh Environments

Extension Cord Splitters

Turn-Lock Power Cords

Electronic Equipment Turn-Lock Power Cords

Turn-Lock Plugs, Sockets, and Receptacles

Premium Turn-Lock Plugs, Sockets, and Receptacles

Ground-Monitoring Turn-Lock Plugs and Sockets

Washdown Turn-Lock Connectors and Cords

Impact-Resistant Turn-Lock Connectors

Corrosion-Resistant Turn-Lock Connectors